Global Patent Index - EP 1112979 A1

EP 1112979 A1 20010704 - Method and device for controlling the tension applied to an optical fibre

Title (en)

Method and device for controlling the tension applied to an optical fibre

Title (de)

Verfahren und Vorrichtung zur Regelung der Zugspannung einer optischen Faser

Title (fr)

Procédé et dispositif pour régler la tension appliquée à une fibre optique

Publication

EP 1112979 A1 20010704 (EN)

Application

EP 00127808 A 20001219

Priority

  • EP 00127808 A 20001219
  • EP 99126119 A 19991229

Abstract (en)

Optical fibre tensioning device, receiving at its input an optical fibre (35) from a traction device (37) and capable of supplying the optical fibre from its output to a device (40) for storing the fibre. The tensioning device (1) comprises at least one fixed pulley (32) on which the optical fibre (35) is wound, for a certain length at least, and at least one movable pulley (9) on which the optical fibre (35) is wound, for a certain length at least. A device for measuring the tension applied to the fibre and a motorized device (24, 26, 5, 7) for moving the movable pulley (9) interact with each other to control the distance (Dp) between the axes (33, 20) of the pulleys (32, 9) in such a way as to automatically keep the tension applied to the fibre essentially constant. A method for controlling the tension applied to an optical fibre using such a device is also disclosed. <IMAGE>

IPC 1-7

C03B 37/03; C03B 37/07

IPC 8 full level

B65H 59/38 (2006.01); C03B 37/03 (2006.01); G02B 6/36 (2006.01)

CPC (source: EP)

B65H 59/385 (2013.01); C03B 37/032 (2013.01); B65H 2701/32 (2013.01)

Citation (search report)

  • [DA] EP 0254462 A1 19880127 - ANDREW CORP [US]
  • [DA] US 5790292 A 19980804 - OTSUKA KAZUE [JP], et al
  • [DA] US 4138069 A 19790206 - BONZO ROY T, et al
  • [DA] EP 0483661 A2 19920506 - CORNING INC [US]
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 5 30 April 1998 (1998-04-30)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 4 30 April 1997 (1997-04-30)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 12, no. 365 29 September 1988 (1988-09-29)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 12, no. 252 15 July 1988 (1988-07-15)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 10, no. 245 22 August 1986 (1986-08-22)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 10, no. 123 8 May 1986 (1986-05-08)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 8, no. 172 9 August 1984 (1984-08-09)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 7, no. 273 6 December 1983 (1983-12-06)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 7, no. 86 9 April 1983 (1983-04-09)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1112979 A1 20010704; EP 1112979 B1 20040609

DOCDB simple family (application)

EP 00127808 A 20001219